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Finding the Fourth Proportional to 1,263,495.48, 1,743,736.14 and 719,512.44

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Solution

The fourth proportional to 1,263,495.48, 1,743,736.14 and 719,512.44 is: 992,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,495.48 : 1,743,736.14 = 719,512.44 : x
  2. Step 2: Convert to fraction form
    1,263,495.48/1,743,736.14 = 719,512.44/x
  3. Step 3: Cross multiply
    1,263,495.48x = 1,743,736.14 × 719,512.44
  4. Step 4: Simplify right side
    1,263,495.48x = 1,254,639,844,807.58
  5. Step 5: Solve for x
    x = 1,254,639,844,807.58/1,263,495.48
  6. Step 6: Final answer
    x = 992,991.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.